Can you think of any three-dimensional shape that comprises of exactly two surfaces?

What is the difference between a jeweller and a jailer?

What English word has three consecutive double letters?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

Why 1729 is a magic number? Answer Logically.

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.